Аннотация:The anodic oxidation kinetics of silicon with n- and p-type conduction was investigated in aqueous sulfuric acid solutions. Two types of kinetic relations were found to exist between anodic potential and charge: in electrolytes at room temperature one finds a nonmonotonic aperiodic curve with a single potential maximum; at higher solution temperatures this curve changes to a periodic function with several minima and maxima. The composition of the resulting anodic silicon oxides was studied by x-ray photoelectron spectroscopy. A model involving the anodic formation of porous silicon oxide was suggested to explain the data obtained.